Major Problems Trouble Shooting - Samsung CLP-31 Series Service Manual

4.2.8 Major Problems Trouble shooting

1) Vertical Line and Band
1. Straight thin black vertical line occurs in the printing.
Description
2. Darj\k black vertical band occur in the printing.
1. Damaged develop
roller in the Developer.
Deformed Doctor-blade
or cleaningblade.
2. Scratched surface
of the discharge roller in
the developer.
3. Partly depression
or deformation on the surface of
the transfer roller.
Service Manual
Alignment & Troubleshooting
If causes 1 and 2 occur in the developer unit,
replace the developer and try to print out.
Replace the transfer roller if occurred as No. 3.
4-54
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